Marsyas  0.2
/home/gperciva/src/marsyas/src/marsyas/RawFileSource.h
00001 /*
00002 ** Copyright (C) 1998-2010 George Tzanetakis <gtzan@cs.uvic.ca>
00003 **  
00004 ** This program is free software; you can redistribute it and/or modify
00005 ** it under the terms of the GNU General Public License as published by
00006 ** the Free Software Foundation; either version 2 of the License, or
00007 ** (at your option) any later version.
00008 ** 
00009 ** This program is distributed in the hope that it will be useful,
00010 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
00011 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012 ** GNU General Public License for more details.
00013 ** 
00014 ** You should have received a copy of the GNU General Public License
00015 ** along with this program; if not, write to the Free Software 
00016 ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
00017 */
00018 
00019 #ifndef MARSYAS_RAWFILESOURCE_H
00020 #define MARSYAS_RAWFILESOURCE_H
00021 
00022 #include "AbsSoundFileSource.h"
00023 #include <sys/stat.h>
00024 
00025 namespace Marsyas
00026 {
00039     class RawFileSource : public AbsSoundFileSource
00040     {
00041         private: 
00042             FILE *sfp_;
00043             mrs_real time_;
00044             mrs_real rate_;             // loop frequency
00045   
00046             short *buffer_;
00047   
00048   
00049             realvec data_;
00050             mrs_real phaseOffset_;
00051   
00052             unsigned long fileSize_;
00053             unsigned long bufferSize_;
00054             bool byteSwap_;
00055             std::string filename_;
00056             mrs_natural ch_, pos_, nChannels_;
00057 
00058             void addControls();
00059             void myUpdate(MarControlPtr sender);
00060             void swap16(unsigned char *ptr);
00061   
00062             void readData( unsigned long index );
00063             bool getRawInfo( const char *fileName );
00064             void getHeader(std::string filename);
00065 
00066         public:
00067             RawFileSource(std::string name);
00068             ~RawFileSource();
00069   
00070             MarSystem* clone() const;
00071             void myProcess(realvec& in,realvec &out);
00072   
00073   
00074             // helpers for synthesis routines
00075             void setFrequency(mrs_real frequency);
00076             void openFile(std::string filename); //[?] not coherent with interface defined by AbsSoundFileSource!
00077     };
00078 
00079 }//namespace Marsyas
00080 
00081 #endif    /* !MARSYAS_RAWFILESOURCE_H */